Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
47°F
8°C
| Humidity | 74% |
| Wind Speed | Calm |
| Barometer | 30.46 in (1031.7 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 17 Oct 6:53 pm CDT |
Extended Forecast for
4 Miles SSW Belleville IL
Frost Advisory October 18, 01:00am until October 18, 09:00am
Tonight
Low: 34 °F
Clear then
Patchy FrostSunday
High: 69 °F
Patchy Frost
then SunnySunday Night
Low: 38 °F
Clear
Monday
High: 72 °F
Sunny
Monday Night
Low: 41 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 44 °F
Mostly Clear
Wednesday
High: 78 °F
Sunny
Wednesday Night
Low: 48 °F
Mostly Clear
Detailed Forecast
Tonight
Patchy frost after 4am. Otherwise, clear, with a low around 34. Light and variable wind.
Sunday
Patchy frost before 8am. Otherwise, sunny, with a high near 69. Calm wind becoming south around 6 mph in the morning.
Sunday Night
Clear, with a low around 38. Light and variable wind.
Monday
Sunny, with a high near 72. Calm wind.
Monday Night
Mostly clear, with a low around 41. Calm wind.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 50.
Saturday
Mostly sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SSW Belleville IL
38.48°N 90.01°W (Elev. 502 ft)
38.48°N 90.01°W (Elev. 502 ft)
6:10 pm CDT Oct 17, 2026
7pm CDT Oct 17, 2026-6pm CDT Oct 24, 2026
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